As Conditions of Approval of the PMA for the Alair System, the FDA requires Asthmatx to
generate data to assess the durability of the BT treatment effect as well as safety data in
the intended use population in the United States.

Date & Status

Recruiting

Who can Participate?

Eligibility

Ages:18 - 65

Gender:Both

Eligibility

Inclusion Criteria:

1. Subject is an adult between the ages of 18 to 65 years.

2. Subject is able to read, understand, and sign a written Informed Consent to participate in the study and able to comply with the study protocol.

3. Subject has asthma and is taking regular maintenance medication that includes:

1. Inhaled corticosteroid (ICS) at a dosage greater than 1000μg beclomethasone per day or equivalent, AND long acting β2-agonist (LABA) at a dosage of ≥100μg per day Salmeterol or equivalent.

2. Other asthma medications such as leukotriene modifiers, or anti-IgE, are acceptable (Subjects on Xolair® must have been on Xolair for greater than 1 year).

3. Oral corticosteroids (OCS) at a dosage of up to, but not greater than 10mg per day are acceptable.*

4. Subject has a pre-bronchodilator FEV1 of greater than or equal to 60% of predicted.

5. Subject is a non-smoker for 1 year or greater (if former smoker, less than 10 pack years total smoking history).

6. Subject is able to undergo outpatient (same day) bronchoscopy in the opinion of the investigator or per hospital guidelines.

- NOTE: Subjects on a dosage regimen of 20mg OCS every other day may be included as this is equivalent to an average daily dosage of 10mg.

Exclusion Criteria:

1. Subject is participating in another clinical trial within 6 weeks of the Baseline Period involving respiratory intervention that could affect the outcome measures of this Study.

2. Over the last 7 days of a 4 week medication stable period, subject requirement for rescue medication use other than for prophylactic use for exercise exceeds an average of:

1. 8 puffs per day of short-acting bronchodilator, or

2. 4 puffs per day of long-acting rescue bronchodilator, or

3. 2 nebulizer treatments per day. At the discretion of the Principal Investigator, subjects considered as unstable on baseline medications may have medications adjusted and re-evaluated after a 4 week medication stabilization period.

3. Subject has a post-bronchodilator FEV1 of less than 65%.

4. Subject has a history of life-threatening asthma, defined by past intubation for asthma, or ICU admission for asthma within the prior 2 years.

5. Subject has 3 or more hospitalizations for exacerbations of asthma in the previous year.

6. Subject has had 4 or more infections of lower respiratory tract (LRTI) requiring antibiotics in the past 12 months.

7. Subject has had 4 or more pulses of systemic corticosteroids (tablets, suspension or injection) for asthma symptoms in the past 12 months.

8. Subject has a known sensitivity to medications required to perform bronchoscopy (such as lidocaine, atropine and benzodiazepines).